261.

Asteroid 349 Dembowska at opposition Asteroid 349 Dembowska makes closest approach to the Earth. Thu, 12 Aug 2021 at 07:58 EST (1,615 days ago) in Piscis Austrinus

262.

Perseid meteor shower 2021 The Perseid meteor shower reaches its peak. Thu, 12 Aug 2021 (1,615 days ago) in Perseus

263.

Messier 15 is well placed The globular cluster M15 (NGC 7078; mag 6.3) in Pegasus culminates at around midnight local time. Sat, 14 Aug 2021 (1,613 days ago) in Pegasus

264.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and remaining visible until around midnight. Sun, 15 Aug 2021 at 11:20 EST (1,612 days ago) in Libra

265.

Messier 2 is well placed The globular cluster M2 (NGC 7089; mag 6.6) in Aquarius culminates at around midnight local time. Sun, 15 Aug 2021 (1,612 days ago) in Aquarius

266.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Antarctica, New Zealand and Macquarie Island. Mon, 16 Aug 2021 at 05:00 EST (1,611 days ago) in Scorpius

267.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, appearing larger than at other times of the month – though only very fractionally. Tue, 17 Aug 2021 at 05:15 EST (1,610 days ago) in Ophiuchus

268.

κ-Cygnid meteor shower 2021 The κ-Cygnid meteor shower reaches its peak. Tue, 17 Aug 2021 (1,609 days ago) in Draco

269.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from parts of the Americas, Bonaire, Saint Eustatius and Saba, Clipperton Island, Grenada and Navassa Island. Wed, 18 Aug 2021 at 23:28 EST (1,609 days ago) in Sagittarius

270.

Conjunction of Mercury and Mars Mercury and Mars share the same right ascension, at a separation of 4'48". Thu, 19 Aug 2021 at 00:09 EST (1,609 days ago) in Leo

271.

Asteroid 43 Ariadne at opposition Asteroid 43 Ariadne makes closest approach to the Earth. Thu, 19 Aug 2021 at 00:46 EST (1,609 days ago) in Aquarius

272.

Jupiter at opposition Jupiter is optimally positioned for observation, appears at its closest, brightest and largest. Thu, 19 Aug 2021 at 20:20 EST (1,608 days ago) in Capricornus

273.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Thu, 19 Aug 2021 at 20:57 EST (1,608 days ago) in Aries

274.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Fri, 20 Aug 2021 at 01:25 EST (1,607 days ago) in Capricornus

275.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°42'. Fri, 20 Aug 2021 at 18:15 EST (1,607 days ago) in Capricornus

276.

The Moon at aphelion The Moon passes its furthest point from the Sun, a monthly occurrence around the time of full moon. Fri, 20 Aug 2021 at 19:31 EST (1,607 days ago) in Capricornus

277.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 20 Aug 2021 at 19:39 EST (1,607 days ago) in Capricornus

278.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°57'. Sun, 22 Aug 2021 at 00:56 EST (1,606 days ago) in Capricornus

279.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 22 Aug 2021 at 03:11 EST (1,605 days ago) in Capricornus

280.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 22 Aug 2021 at 08:01 EST (1,605 days ago) in Aquarius